Home / 1,243,653.40-1,865,019.30-402,232.60

Finding the Fourth Proportional to 1,243,653.40, 1,865,019.30 and 402,232.60

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Solution

The fourth proportional to 1,243,653.40, 1,865,019.30 and 402,232.60 is: 603,199.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,653.40 : 1,865,019.30 = 402,232.60 : x
  2. Step 2: Convert to fraction form
    1,243,653.40/1,865,019.30 = 402,232.60/x
  3. Step 3: Cross multiply
    1,243,653.40x = 1,865,019.30 × 402,232.60
  4. Step 4: Simplify right side
    1,243,653.40x = 750,171,562,089.18
  5. Step 5: Solve for x
    x = 750,171,562,089.18/1,243,653.40
  6. Step 6: Final answer
    x = 603,199.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.